US PATENT SUBCLASS 340 / 982
.~.~ Lights communicate (e.g., direction, altitude, reference position to observer)


Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

945  DF  AIRCRAFT ALARM OR INDICATING SYSTEMS {11}
981  DF  .~ Aircraft beacons {1}
982.~.~ Lights communicate (e.g., direction, altitude, reference position to observer)


DEFINITION

Classification: 340/982

Lights communicate (e.g., direction, altitude, reference position to observer):

(under subclass 981) Subject matter wherein the beacons are visual signals which indicate to the observer information concerning the flight path or position of the aircraft.

(1) Note. For example, this information may be the direction, altitude, reference position etc., of the aircraft to the observer.